// CleanupEnv has to be called on application shutdown. Will remove the pidfile.
func CleanupEnv(cfg *config.Config) error {
if !utils.FileExists(cfg.System.Pidfile) {
return fmt.Errorf("Pidfile %s does not exists.", cfg.System.Pidfile)
}
var b, err = ioutil.ReadFile(cfg.System.Pidfile)
if err != nil {
return err
}
var pid int
pid, err = strconv.Atoi(string(b))
if err != nil {
return err
}
if pid != os.Getpid() {
return fmt.Errorf("File had different pid: %d", pid)
}
return os.Remove(cfg.System.Pidfile)
}
// CleanupEnv has to be called on application shutdown. Will remove the pidfile.
func CleanupEnv(cfg *config.Config) error {
if !utils.FileExists(cfg.System.Pidfile) {
return fmt.Errorf("Pidfile %s does not exists.", cfg.System.Pidfile)
}
fh, err := os.Open(cfg.System.Pidfile)
if err != nil {
return err
}
var pid int
_, err = fmt.Fscanf(fh, "%d", &pid)
fh.Close()
if err != nil {
return err
}
if pid != os.Getpid() {
return fmt.Errorf("File had different pid: %d", pid)
}
return os.Remove(cfg.System.Pidfile)
}
func TestWithFullFilesystem(t *testing.T) {
targetPidFile := "/dev/full"
// We will run this test only on operating sytems which has the
// /dev/full device
if !utils.FileExists(targetPidFile) {
t.Skip("This OS does not support /dev/full")
}
cfg := getCfg(config.SystemSection{Pidfile: targetPidFile})
err := SetupEnv(cfg)
if err == nil {
t.Error("There was no error with pidfile in full filesystem")
}
if pathErr, ok := err.(*os.PathError); !ok || pathErr.Op != "write" {
t.Errorf("Error was for creating the file. Not for writing in it: `%s`", err)
}
}